Supply Air Grille Sizing Chart

Duct system sizes and airflow quick chart created date.

Supply air grille sizing chart.

Use the calculator below to quickly and easily determine the grille airflow. Supply air grille sizing chart. Grille length inches grille height inches please fill in either cfm cubic feet per minute value or fpm feet per minute value. Return a return draws air into a return duct system with negative pressure compared to the space usually via a fixed grille but.

This is critical if the grille is on the wall. Supply grille sizing chart yoskin. You must order by the duct opening size width x height. First calculate the percent of outside air compared to system airflow by dividing the outside air cfm by the total supply airflow.

Written by kupis on january 23 2020 in chart. Should the system have an outside air intake you must reduce the amount of required return air into each return grille and duct to provide for the outside air entering the return side of the fan. First let s define some terms. Supply grille sizing chart yoskin.

Known cfm calculate fpm based on known cfm. Air flow calculator linear bar grilles. If you are ordering a wall return air grille or return air filter grille please note that these are directional.